Device for throwing, washing, and reeling spooled artificial silk



R. .SINKWITZ.

DEVICE FOR THROWING, WASHING, AND REELING SPOOLED ARTIFICIAL SILK.

APPLICATION FILED JAN-30.1922.

1 27,23 I Patented Aug. 29, 1922.

2 SHEETS-SHEET l.

R. SINKWITZ.

DEVICE FOR THROWING, WASHING, AND REELING SPOOLED ARTIFICIAL SILK.

APPLICATION FILED JAN. 30, I922.

Patented Aug. 29, 1922.

2 SHEETS-SHEET 2.

omen STATES" PATENT OFFICE.

' BUDOLF SINIWITZ, OI COPITZ, GERMANY, ASSIGNGB 'I'O WILHELK IAUIIA HN, OI"

DRFSDEN-A, SAXONY, GERMANY.

nnv'renron rnaowme, wnsnme, AND anmime sroomn aa'rxncm um:

ToiaZZ whom it may concern:- Be it known that I, RUDOLF SINKwrrz, a citizen of the German Republic, residing at Copitz, on the River Elbe, Germany, have invented certain new and useful Improvements in a Device for Throwing, Washing, and Reeling Spooled Artificial Silk, of which the following is a specification. This invention relates to devices for throwing, washing and reeling artificial threads of cellulose which have been spoo'led after precipitation and it relates more specially to a device by which the operations mentioned can be executed in one continuous course. The devices of this type of known construction sufi'er from the inconvenience that the freshly precipitated thread has very little resistanceand that at the continuous course of work it is submitted to a consider-' able tensile stress and to considerable vibrations as it has to travel over a long distance and over several pulleys and to traverse several baths. It is further not possible with the well knowndevices to guide the thread by hand-over the different guide pulleys and through the baths which is often necessary as the thread breaks frequently.

This inve'nt'on has for its object in the first instance to obtain a complete coagula-' the freshly precipitated thread, which in order to complete the coagulation is wound usually upon a spool revolving in a top bath, run through a washing conduit in being pulled oil the spool placed upon a twisting spindle, the thread being thrown along in said conduit by the current-of the Water and being reeled directly when getting out of the washing conduit. The thread is thoroughly washed in this manner as the length of the washing conduit is not limited and the conduit can be of convenient curvature, and the noxious tensile stress is considerably diminished as the thread floats in the washing liquid without tension. The curvature of the washing conduit has further the advantage that, notwithstanding the length of thewashing conduit, the reel can be arranged in close proximity to the twisting spindle so that both devices can be supervised simultaneously by one man.

The invention relates'further to a device for unwinding the thread from the twisting Specification of Letters Patent.

Application flied January 30, 1922. Serial No. 532,880.;

spool and for the insertion of the same into the washing conduit, said device ensuring that the separation of the thread from the twisting spool and'from' the pulling off device 1s efl'ected with as littleresistance as possible.

A further improvement relates to a moistenlng device for the artificial thread upon the twisting spool which is necessary as this thread dries rapidly and because brittle in consequence of its being thrown about. wherefrom results that at the twisting from the spool considerable waste remains upon the spool.

7 According to the invention an elastic tensioning device is arranged ahead of the reel which yields, as soon as the thread stops, for instance if it sticks to the wall of the washing conduit, so that the thread is prevented from breaking as it must not be pulled by the reel or only verylittle.

In order that the invention may be clearly understood, I shall proceed to describe the same with reference to the form of construction shown by way of example on the accompanying drawings, wherein Fig. 1 is a diagrammatic side elevation of a double device for the throwing, washing and reeling of an artificial thread.

Fig. 2 is a front view of Fig. 1 showing the two companion devices partly merely indicated.

Figs. 3 and 4-are respectively a side elevation and front view on a larger .scale showing the device for pulling the thread oil the twisting spool and for feeding the same .into the washing conduit.-

Figs. 5 and 6 are respectively a front elevation and perspective view of the tensioning device for the thread coming out of the .washing conduit.

tion the arrangement of a number of de-- vices superposed and juxtaposed, the identical oppositely situated half being omitted. The different devices are mounted upon a frame 1. Across the top of the frame 1 a.

water pipe 2 extends from which several tubes 5 branch off which have each a shutting oif cock 3 and a, nozz1e shaped free end 110 4. The nozzle 4 is directed upon the inlet: opening 60f a washing conduit 7 which is bent repeatedly in U-shape and terminates at the same side at which the inlet orifice 6 is situated. The end 8 ofthe washing conduit is situated'above'a gutter 9 mounted upon a bracket 10. Upon a bracket 11 fixed to the frame 1 a number of receptacles 12 are arranged "the one at the side of the other, each of which comprises a revoluble twistin spindle 13, the spool 14 of which is situated in said receptacle. Under the bottom plate of receptacle 12 a string pulley 22 is fixed upon the projecting lower end of the twisting spindle 13. be driving string, not shown, is bent around this string pulley.

From the water pipe 2 vertical tubes 16 are branched off, each of which has a stop valve 15. Each tube 16 is closed at the lower end and presents a hole 18 at the same height as the middle of the spool. The lower end of the tube 16 is enclosed in an envelope 17 which is arranged eccentrically with regard to the tube 16 so that the hole 18 stands at a certain distance from the wall of said envelope 17. The envelope 17 has opposite the spool a narrow slit 19 the length of which corresponds with the height of the spool. One edge of the slit is bevelled so that the edge 20 of the same is situated upon the inner surface of the envelope. The hole 18 of tube 16 stands opposite the edge 20 of the slit 19. In the bottom plate of the envelope 17 a small hole 21 is provided for the outflow of the water in excess. The water which comes in contact with the edge of the slit 1? will be atomized already at a low pressure so that it moistens in thisstate the spool 14 upon its entire height, the thread being thus kept constantly moist so that it can be twisted off from the beginning to the end.

A thread guide 23 and a brake fork 24 are arranged above the twisting spindle 13 designed to brake the thread pulled off the spool 14 more or less according to their adjustment. The pulling-off device arranged above the brake consists of a roller 25 (Figs. 3 and 4) which has ribs 26 and of'a grooved roller 27 preferably made from glazed porcelain.

mounted upon an axle 29. The rollers 27 re volve with a greater circumferential speed than the rollers 26.

The thread coming from the twisting spool 14 and guided by the thread guide 23 and the brake 24 is wound around the pulling-01f roller 25 and then around the roller 27 from which it is thrown into the orifice 6 of the washing conduit 7. The connection of the pulling-01f roller 25 with the tensioning roller 27 has the advantage that the pulling off device requires little space, a diameter of about 50 mm. being sufiicie'nt for the pulling-01f roller 25 whilst hitherto this roller Two rollers 26 are always mounted. upon one axle 28 and two rollers 27 are ea-wee had a diameter of approximatel 300 to 400 mm.; a diameter of approximate y 20-min. is sufiicient for the rol er 27.

At the outlet end of the washing'conduit 7 upon the gutter 9 for the washing liquid a device for tensioning the thread and for compensating retardations in the movement of the thread is arranged in front of the reel. This device consists of a U-shaped bow 30 of glass with cranked arms which are mounted in two bearing forks 31 which are preferably made also of glass rods. Each bearing fork 31 is mounted with its shaft in a support 32 fixed upon the gutter 9. Angles or books 33- are further provided in the supports 32 one arm of each angle being pivotally mounted in the corresponding support and the other arm of the same gripping over the middle part of the arm of the crank how 30 which is thus prevented from getting out of the bearing forks. The bow 30 can be released for removal by turning the angles or hooks 33. The ends of the arms of the how 30 are so heavy that the bow adopts a vertical position under the action of its own weight.

The thread coming from the washing conduit is guided at an angle over the bow 30 and wound around the reel 34. As soon as a stoppage occurs the thread is stretched and forces the bow 30 to adopt an inclined position. As soon as the thread gets slack again the bow returns to the vertical position.

The devices described can be arranged in any required number, the one at the side of the other and the one above the other or opposite each other. In the arrangement shown on Figs. 9 and 10 two superposed rows of twisting spindles and of pulling-off devices with corresponding washing conduit and a common gutter are superposed, only one row of reels and tensioning devices being provided. The washing conduits can be made as long as necessary by bending the same repeatedly. If the devices are arranged at both sides of the frame the washing conduits are situated at the middle between the two sets of devices partly superposed and partly juxtaposed.

I claim 1. An improved device for throwing, washing and reeling spooled artificial silk comprising in combination a twisting spindle, a spool upon said spindle upon which the artificial thread is wound, a long washing conduit through which the thread is assisted, on being drawn therethrough, by the flow of the washing liquid, so as to relieve tension on the thread, means for guiding the thread from the spool to the inlet orifice of said washing conduit, and a reel at the end of said washing conduit upon which the thread is wound.

2. An improved device for throwin washing and reeling spooled artificial sil comprising in combination a twisting spindle, a spool upon said spindle upon which the artificial thread is wound, a lon washing conduit through which the thread 1s assisted, in being drawn therethrough, by the flow of the washing liquid, so as to relieve tension on the thread, said conduit being curved so that its outlet end is situated at the same side as the inlet end, means for guiding the thread for the spool to the inlet orifice of said washing conduit, and a reel at the end of said washing conduit upon Which the thread is wound.

3. An im roved device for throwing, washing an reeling spooled artificial silk comprising in combination a twisting spindle, a spool upon said spindle upon which the artificial thread is wound, a long washing conduit through which the thread is assisted, in being drawn therethrough by the flow of the washing liquid so as to relieve tension on the thread, said conduit being curved so that its outlet end is situated at the same side as the inlet end, a revolving pulling-0H roller for unwinding'the thread from the spool, a dotting roller revolving at higher s eed than said pulling-01f roller for taking t e thread from the pulling-off roller and conducting the thread into the inlet orifice of the washing conduit, and a reel at the end of said washing conduitupon which the thread is wound.

washing an reeling spooled artificial silk the artificial thread is wound, a water atomizer arranged opposite said spool for moistening the spool during the twisting process, a long washing conduit throu h which the thread is assisted, in being rawn therethrough by the flow of the washing liquid so as to relieve tension on the thread, means for guiding the thread from the spool to the inlet orifice of said washing conduit, and a reel at the end of said washing conduit upon which the thread is wound.

5. An improved device for throwing, Washing and reeling spooled artificial silk comprising in combination a twisting spindle, a spool upon said spindle upon which the artificial thread is wound, a long Washing conduit through which the thread is assisted in being drawn therethrough by the flow of the washing liquid so as to relieve tension on the thread, means for guiding the thread from the spool to the inlet orifice of saidtwashing conduit, and a reel at the end of said washing conduit upon which the thread is wound, and a tensioning device between the outlet end of the washing conduit and the reel consisting of an oscillating bow of glass which is held in the tensioning position by the action of its own weight.

In testimony whereof I affix my signature.

RUDOLF SINKWITZ. 

